A5052340698- Marine and fisheries research
- Avian ecology and behavior
- Animal Behavior and Reproduction
- Fish Ecology and Management Studies
- Marine Bivalve and Aquaculture Studies
- Ecology and Vegetation Dynamics Studies
- Plant and animal studies
- Evolution and Genetic Dynamics
- Animal Ecology and Behavior Studies
- Mathematical and Theoretical Epidemiology and Ecology Models
- Microbial infections and disease research
- Veterinary medicine and infectious diseases
- Species Distribution and Climate Change
- Animal Virus Infections Studies
- Evolutionary Game Theory and Cooperation
- Genetic diversity and population structure
- Wildlife Ecology and Conservation
- Animal Vocal Communication and Behavior
- Climate change and permafrost
- Ecology and biodiversity studies
- Fisheries and Aquaculture Studies
- Neonatal Respiratory Health Research
- Neural Networks and Applications
- Animal Behavior and Welfare Studies
- Respiratory Support and Mechanisms
Swedish University of Agricultural Sciences
1999-2022
European Organisation for Research and Treatment of Cancer
2022
University of Skövde
2003-2016
Swedish Board of Agriculture
2001-2013
Pontificia Universidad Católica de Chile
2006
Stockholm University
1998-1999
Swedish Veterinary Agency
1999
Lund University
1995
Royal College of Music in Stockholm
1974
Abstract The eastern Baltic (EB) cod (Gadus morhua) stock was depleted and overexploited for decades until the mid-2000s, when fishing mortality rapidly declined biomass started to increase, as shown by assessments. These positive developments were partly assigned effective management measures, EB considered one of most successful recoveries in recent times. In contrast this optimistic view, analytical assessment failed 2014, leaving present status unclear. Deteriorated quality some basic...
1. The spatial distribution of foraging predators differing in traits was investigated theoretically. Three types individual differences were investigated: dominance that determines the outcomes fights for food, searching efficiency and prey handling efficiency. basic assumptions were: (i) search prey; (ii) encountered takes time to handle; (iii) process may be interrupted by a competitor initiating conflict about (iv) conflicts take an expected settle; (v) winner resumes loser searching. 2....
Nature-Based Solutions (NbS), a concept introduced in the late 2000s, has developed rapidly during last years and is now frequently appearing broad spectrum of policies within European Union. Its role marine research programmes however still limited, but likely to increase as NbS are adopted key terminology both biodiversity strategies EU taxonomy for sustainable financing. This will enhance need scientific advisory institutions provide evidence-based advice on potential impacts various...
The lesser spotted woodpecker Dendrocopos minor is a territorial species with its food resources distributed in patches, i.e. insect larvae dead branches of trees. threatened Northern Europe, and therefore it interest to identify factors responsible for decline. We hypothesise that (a) foraging behaviour maximising fitness, (b) the woodpeckers, through their behaviour, reveal own opinion about territory or individual quality, (c) an inter-territorial comparison reproduction shows which...
We present a model of the survival-maximizing foraging behavior an animal searching in patches for hidden prey with clumped distribution. assume forager to be Bayesian: it updates its statistical estimate number current patch while foraging. When arrives at parch, has expectation patch's quality, which equals average quality environment While foraging, uses information about time spent and how many been caught during this time. It can both instantaneous intake rate potential rest parch...
Summary The aim of the present study was to survey prevalences enteric pathogens Brachyspira hyodysenteriae , pilosicoli and Lawsonia intracellularis in Swedish growing pigs wild boar population relate these findings clinical signs. included 105 randomly selected herds, constituting approximately one third herds with a herd size >100 sows. were located all over country. In growth promoters not used sampled subjected any medication. From each herd, samples taken from 10 aged 8–12 weeks,...
We simulated mimicry evolution by allowing three populations to cocvolvc: two of senders and one receivers. Artificial neural networks were used model receivers, it was assumed that recognition inherited. The senders' signals consisted nine dimensions. Changes receivers caused random mutations during the course simulation. Whereas paid both types elicit same response from receiver, benefited receiver respond in this way only towards sender types. thus conflict with senders, e.g. as Batesian...
A forager that is optimising its behaviour on the basis of some information likely to reveal particular through behaviour. We investigated cases completely informed and Bayesian foragers searching for food with a clumped distribution (the negative binomial distribution) between patches. Two different currencies were analysed: maximised intake rate minimised predation risks. Predictions made concerning two foraging variables: average giving-up density items in patches patch residence time....
The post-nuptial primary moult of adult (2-year-birds included) Dunlins was investigated along the Baltic coast at Ottenby and Falsterbo, S. Sweden. These birds are on migration only make short stopovers. During years 1985-1988 Ottenby, proportions moulting varied between 27% 61%, probably due to annual variations in timing their passage. Compared with older birds, 2-year-birds had more often initiated and, average, appeared a advanced stage moult. Most that were actively some feathers not...
Abstract The aim of the present paper was to study throughput capacity (i.e. ability straw drain through slatted flooring) 15 kg chopped used around time farrowing. A cohort including 96 sows conducted in two commercial herds, comparing wheat three length categories (mass median 39, 70 and 130 mm). Straw with short medium chop lengths completely absent 83% (plastic slats) 85% (cast-iron slats), respectively, pens on Day 4 after farrowing, compared 7% 6% provided longest category. We conclude...
The current fisheries management goals set by the European Commission states that fish stocks should be harvested to deliver maximum sustainable yields (MSY) and simultaneously, take ecosystem considerations into account. This creates unsolved trade-offs for of stocks. We suggest a definition multi-species-MSY (MS-MSY) where no alternative fishing mortality (F) can increase yield (long term) any ecologically interacting stock, given other are fished at constant efforts (Fs). Such MS-MSY...
The despotic distribution described by Fretwell and Lucas (1970) the ideal free of individuals differing in competitive ability (Parker Sutherland 1986) were applied to evolution migration patterns. In both theories, dominant monopolize best resources but dominance is mediated prior occupancy former body size latter. Additional parameters used latitudinal suitability gradients for breeding wintering, costs between sites. When are high, leap-frog most likely pattern develop. Chain develops...
The extensive overlap in morphological characters between populations of Dunlin Calidris alpina imposes problems determining the origin migrating and wintering birds. morphology birds also varies sexes, sex a may often be difficult to determine. To clarify if mitochondrial DNA can used identify which breeding areas come from, we investigated occurrence different mtDNA haplotypes from eight on Russian Siberian tundra. Four were found at most sites more than one haplotype occurred. European...